【摘要】 分析了岸滩、海底地形和海岸地貌现代作用过程,用数值模拟方法研究了海沙开采导致的海底地形改变,以及由此引起流场及波浪折射而造成的海岸动力变化,讨论了这种变化对海底和海岸的动态影响。通过计算悬浮泥沙和再释放污染物的浓度变化、扩散和输运途径,预测了环境质量影响范围,以减轻海砂开采活动对周围环境带来的影响。更多还原

【Abstract】 In this paper,the variations in submarine topography and coastal dynamics caused by sand exploitation are studied by studying the modern action processes of coastal beach,submarine topography and coastal geomorphology and making numerical simulation,and the dynamic impacts of the variations on sea bottom and coast are analyzed.The range of impact on environmental quality is predicted by computing the concentration variatiion,dispersion and transportation pathway of suspended sedmiment and released pollutant so as to mitigate the impact of sand exploitation activities on the ambient environment.更多还原